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Calum is a lecturer in physics at Edge Hill University where he studies topological solitons and enjoys talking about maths and physics to anyone who will listen. He can often be found on the side of a mountain or out on a bike, talking to himself about solitons.

What’s hot and what’s not, Issue 23
Fashion is fleeting, Chalkdust regulars are not.
Oπnions: In defence of toy models
Calum gets on his soap box about toy models
Markov unchained
Ashleigh Wilcox looks for integer solutions to the Markov equation
Cryptic wordsearch, Issue 19
Can you solve it?
On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmions
What’s your favourite set?
Here we have collected our favourite sets, from the Mandelbrot set to the Mahut-Isner set!

More from Chalkdust

What’s hot and what’s not, Issue 23

Oπnions: In defence of toy models

Markov unchained

Cryptic wordsearch, Issue 19

On the cover: skyrmions

What’s your favourite set?